[1] His career, which began in 1974, specialized in examining the underside of the society; his photographs depicted the lives of underground communities, such as bikers, far right and far left activists, gangs, and sex workers.

[2] Co-director of the photojournalism section of the center for training and development of journalists in 1994, co-founder of the magazine Photographie.com in 1997, independent photojournalist from 1998, Morvan published extensively in the French and international press.

[7][8] In July 1980, he joined the Sipa Agency team, gradually asserting himself through a few subjects: Turkey, the Iran-Iraq war, the Northern Irish conflict as well as Lady Diana's wedding.

He decides to produce a poignant report in the Linhof Technika 4 x 5 large format camera along the Green Line, this no man's land which separates Beirut and the belligerents.

[11][12][13] Yan Morvan covered conflicts for the international press (Uganda, Mozambique, Rwanda, Afghanistan, Cambodia, Iraq, until Bosnia in 1999) and substantive topics on gangs, the amplification of the social divide.

[2] In the 1990s, Yan Morvan created with Patrick Frilet the EMI-CFD and, with Jean-François Bauret and Didier de Fays, the first French photography magazine on the internet: Photographie.com as well as the Talent Award.

André Frère) was released, which won the Hip Prize and was exhibited at Visa pour l'image,[18] Les Années de fer[19] (ed.

[26] 2021 marked the anniversary of 1981,[27] a photographic coverage of the election of François Mitterrand which will give rise to several exhibitions (Marlat gallery, Initial Labo, place de la Bastille and the François-Mitterrand Institute).

Yan Morvan was a trainer at the National School of Photography in Arles, then at the CFD (responsible for the photo course with Patrick Frilet from 1991), and then at the Training and Development Center for Journalists.

In 2000, his series of portraits of young road victims, commissioned by the National Contemporary Art Fund, was exhibited at the Visa pour l'image international photojournalism festival.

Yan Morvan exhibits several photos there alongside, among others, Berenice Abbott, Eugène Atget, Brassaï, Robert Capa, Henri Cartier-Bresson, Josef Koudelka and Marc Riboud.

In 2014, the MGF gallery in Paris organized an exhibition called Schizophrenia which mixed Polaroid snapshots taken during these reports on the war in Iraq, the famine in Rwanda, the pornography industry in California.

Marco Zappone, curator of the exhibition, sums up the photographer's work on this series as follows: “In his Battlefields, Yan Morvan does not attempt to answer this question, but leaves it to the appreciation of the reader.

The exhibition will then be shown in Corbeil (Essonne) from 30 April to 22 May as part of the Mois de la photo du Grand Paris, then at the MAP Festival in Toulouse, from 1 to 30 June.

The Maison des arts du Léman exhibits from May 2021, Première ligne and presents various series including many Cibachrome prints.The recurrence of wars and the regular evolutions of marginalized populations made Yan Morvan understand that he could use these archive photos to better illustrate current phenomena.

To illustrate Brexit, Yan Morvan released in 2018 and 2019 two books, Bobby Sands, on the funeral of the Irish nationalist in 1981, then The Years of Iron on England by Margaret Thatcher.

In 2020, Yan Morvan decides to join forces with the Parisian book publishing and distribution company IC (IndustrieCulturelle) to develop a bimonthly magazine limited to 300 copies for each publication.